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Five Methods for First Aid in Vegetables
1, spray water wash: spray the wrong pesticide or phytotoxicity, if found early, the liquid did not fully penetrate or absorbed into the plant body, you can quickly spray water, wash the surface of the affected plant liquid. If it is an injury caused by acidic chemicals, appropriate amount of plant ash or 0.1% of quicklime can be added during water spraying; phytotoxicity caused by alkaline chemicals can be added, and appropriate amount of vinegar can be added during spraying to neutralize or dissolve the chemicals. At the same time, attention should be paid to the ventilation of the greenhouse, and the cooling and cooling should be conducted so as to facilitate the emission of harmful gases. 2. Detoxification by watering: For some pesticides, the pesticides caused by the herbicides can be applied under the irrigation roots and under the plastic film. The water can be used for watering or stringing irrigation to reduce the toxicity and reduce the accumulation of harmful substances in the roots. Watering at the same time can increase the cell water in the plant, promote metabolism, reduce the relative content of harmful substances, and reduce the degree of injury. 3, removal of the victim's foliage: leaves suffered phytotoxicity, chlorosis discoloration of the branches and leaves should be promptly removed in order to control the penetration of pharmaceutical agents in the plant body conduction. 4. Spraying Relief Agents: Spraying “90†40 ppm solution can relieve the harm caused by plant growth regulators and herbicides; 0.2% soap solution can relieve the harm caused by organophosphorus pesticides; 0.5% quicklime Water can relieve the phytotoxicity caused by copper preparations. 5, make fertilizer to promote seedlings: appropriate amount of topdressing available nitrogen fertilizer or quick-acting compound fertilizer, can also spray full nutrition foliar fertilizer, promote seedling rejuvenation, reduce the degree of injury, and gradually restore normal plant growth.